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Asthma
in Child ?
What
you should know When Child Have Asthma?
How
Can Asthma Attack Be Prevented?
Asthma
In Child
Asthma
is a desperate struggle for breath that sufferers relive over and over
again. The condition affects 4.1 million children under the age of 18, but
many others have a "hidden" or undiagnosed problem. So every
parent should learn how to recognize the symptoms of asthma and how to
control them.
Asthma
is the leading serious chronic illness among children. It's the main cause
of school absenteeism and the third highest cause of hospitalization in
children under the age of 15. But medical advances have greatly improved
the outlook for a child with asthma. With proper treatment, almost
everyone with the condition can go to school and even participate in
sports.
How
Does Asthma Obstruct Breathing?
In
asthma, normal functions designed to protect the lungs from harmful
materials (muscle contraction, mucous membrane swelling and mucus
formation) go into overdrive. The airways are abnormally sensitive to
infection, cold weather and allergies, so the muscles tighten in what is
known as a bronchospasm and the mucous membranes swell, reducing the
diameter of the airways. In addition, mucus production becomes extreme,
sometimes forming sticky plugs in the bronchial tubes.
Who
Is More Prone to Get Asthma?
Asthma
affects people of any sex, age and race, but there are some factors that
may increase a child's risk:
-
Inflammation.
Chronic irritation of the
airways is a hallmark in all asthma patients. Recent studies indicate
that it is -- at least in part -- a cause of the disease. This
inflammation is triggered by allergy, infections and air irritants.
-
Allergies.
About 75-80 percent of children with asthma have significant
allergies, which induce airway inflammation. Studies indicate that
allergies produce both immediate and delayed reactions because chronic
airway inflammation can cause scarring.
-
Tobacco
Smoke. Recent studies suggest
that children of smokers are twice as likely to develop asthma as the
children of non-smokers. Even apparently healthy babies born to women
who smoked during pregnancy have abnormally narrowed airways that may
predispose them to asthma.
-
Race.
African-Americans and Hispanics have a higher risk of asthma than
non-Hispanic whites (see "Race Disparity").
What
Are the Symptoms of Asthma?
Signs
that a child may have asthma include a persistent dry cough, nighttime
coughing that disturbs sleep, wheezing, and coughing or shortness of
breath with physical activity. Wheezing, though characteristic of asthma,
is not its most common symptom. Coughing, on the other hand, is noted with
even "hidden" or undiagnosed asthma.
Infants
who have rattle-like coughs, rapid breathing or excessive bouts of
pneumonia or chest colds should be evaluated for asthma. Also, if your
child is diagnosed with bronchitis, consider getting a second opinion
because this condition is rare in children and is usually misdiagnosed
asthma. (Bronchiolitis, a viral infection of the lower respiratory tract,
is a different disease that occurs in infants under 18 months of age.)
Obvious wheezing episodes might not be noted until after 18-24 months of
age. Chest tightness and shortness of breath are other signs of asthma
that may occur alone or in combination with any of the above symptoms.
However, since any of these symptoms can arise without asthma, other
respiratory diseases must always be considered.
What
Triggers an Asthma Attack?
Asthma
is a chronic disease that causes breathing problems, known as attacks or
episodes often triggered by the following conditions:
-
Allergies.
During an allergic reaction,
chemicals, such as histamine, are released from specialized cells.
These substances cause mucous membrane swelling, excessive mucus
secretion and muscle contraction in the airways. Dust, pollen, mold,
food, animals, etc., can all cause allergic reactions.
-
Vigorous
Exercise. Activities such as
running can trigger an episode in over 80 percent of children with
asthma.
-
Respiratory
Infections. These frequently
trigger asthma attacks in much the same way allergies do.
-
Irritants.
Cigarette smoke, air pollution, strong odors, aerosol sprays and paint
fumes are some of the substances which can irritate the tissues of the
lungs and upper airways. The reactions (coughing, wheezing, runny
nose, watery eyes) they produce can be identical to those produced by
allergens.
-
Emotions.
Children do not develop asthma as a result of psychological problems.
However, crying, laughing or yelling in response to an emotional
situation involves deep, rapid breathing, which can sometimes trigger
an asthma attack.
-
Weather.
Studies have demonstrated that breathing cold air provokes an attack
in most children with asthma.
How
Is Asthma Treated?
Although
asthma cannot be cured, in most cases its frequency and severity can be
reduced so that it does not interfere with normal activities, especially
since most asthma attacks develop gradually over days. Many children
outgrow asthma as they get older and their airways get bigger, but they
are still at higher risk for it as adults. These steps can help you and
your doctor control your child's asthma:
1.
Identify your child's triggers. Given
such a wide range of possible asthma triggers, you may find it hard to
figure out what starts your child's asthma attacks. It may appear that
they occur out of the blue, but this generally isn't true. Something
usually sets off an attack, and your pediatrician must make an
individualized evaluation to determine your child's triggers. He or she
may also recommend you see an allergist since skin testing is often
required to determine which allergens are involved. Special diets and
careful tests with suspected foods usually help detect food allergies.
2.
Avoid triggers. Once your child's
triggers are identified, a plan must be formulated to avoid them in
order to lessen the severity of attacks (see "Preventing
Attacks"). For example, if eggs are found to be culprits, eliminate
them from the diet.
3.
Medications. There are four types
of medications used to manage asthma:
-
Anti-inflammatory
agents act directly to reduce
the inflammatory response of the airways. They come in pill and
aerosol form. The oral form may cause more side-effects (nausea,
vomiting, tremor, hyperactivity, headaches, etc.) than the inhaled
type (throat irritation and coughing).
-
Anti-Allergy
drugs help prevent triggers
from causing attacks, but they do not work after one starts.
-
Once
an attack occurs, bronchodilators may be used to relax the
muscles of the airways and open them up. They are available as
tablets and sprays, though the latter is usually preferred because
it acts faster and has fewer side-effects. However, young children
(usually under 8 or 10) cannot use sprays appropriately so oral
medication is used. Bronchodilators are best used as needed and with
caution.
-
Finally,
corticosteroid medications are highly effective in
controlling asthma and reversing severe episodes. (Corticosteriods
are hormones produced by the body. They're not related to the
steroids athletes take.) However, these drugs should be limited to
severe episodes or chronic asthma that cannot be controlled with
other medications because frequent use of them can cause weight
gain, stomach ulcers, high blood pressure, adrenal gland
suppression, growth suppression in children and many other side
effects. But uncontrolled severe asthma is potentially fatal,
representing a much greater risk than corticosteroids.
4.
Allergy injections. Hyposensitation,
allergy shots, immunotherapy or desensitization are synonyms for
injection treatments which reduce a person's sensitivity to certain
allergens. These are mostly recommended for allergens that cannot be
avoided, such as ragweed. Usually a one-year trial of allergy injections
is prescribed to determine their effectiveness. If proven effective,
injections are then continued on a schedule determined by your
physician. Note: Allergy injections are not a substitute for avoiding
asthma triggers.
5.
Early treatment of asthma episodes.
Most episodes do not occur suddenly; they develop gradually over days.
Emergency room visits and hospitalization can be reduced by recognizing
the subtle signs of an impending asthma episode, including a hacking or
tight cough, coughing at night or after exercise, and an increased need
for medication. Ask your health care provider to outline which signs
indicate the onset of an attack for your child. If your child has more
than a few attacks during the course of the year, your doctor will
recommend the use of a peak flow meter -- a portable, inexpensive,
hand-held device used to measure a person's ability to push air out of
his or her lungs. These devices can be used reliably by most children
over the age of five and are an important part of most asthma management
plans.
If
your doctor recommends using a meter, keep a chart of your child's peak
flow rates and discuss the readings with your doctor to determine what is
normal for your child and what calls for immediate action. Also, have your
doctor outline the medication and dosage you should give your child at
these times. If your child does not respond to this treatment, call your
doctor for further instructions. Early aggressive treatment will usually
prevent progression into a severe acute episode.
Triple
Gold-medal Olympic swimmer Nancy Hogshead has had asthma since the age
of 12, but didn't know it until she entered the Olympics.
Medication
Alert!
The
National Heart, Lung and Blood Institute warns that it is dangerous to
rely too heavily on using inhaled bronchodilators since they only provide
temporary relief of symptoms and do not deal with the underlying
inflammation. Additionally, patients may be less cautious about avoiding
triggers if they only depend on a quick-fix. Overuse of any medication
that does not treat the respiratory inflammation may increase the
possibility of death from asthma.
Leading
a Normal Life
It
is important to remember that while asthma must be controlled, it should
not keep your child from normal childhood activities. Don't keep him or
her cooped up out of fear of an attack. Take a positive approach to the
problem. The American Lung Association (ALA) affirms that learning to
control asthma can help a child gain confidence and learn self-discipline
and personal responsibility.
You
should encourage physical activity within your child's limits.
Fortunately, the vast majority of children with asthma can participate in
all activities -- including vigorous sports like track, basketball and
soccer. At the 1984 Olympics there were 34 medal winners who had asthma.
Also, the ALA sponsors about 141 summer residential or day camps around
the country for children with asthma. For more information on the camps,
asthma management, stop smoking programs or other asthma projects, call
the ALA at 800-586-4872, which will automatically dial your local ALA
chapter.
Race
Disparity
In
1985 the prevalence of asthma among African Americans was 7 percent
greater than among whites. By 1991, the difference was 21 percent. And
among Hispanic children 6 months to 11 years old, 20.1 percent suffered
from asthma -- more than any other ethnic group. This racial disparity is
particularly dramatic in one study that shows from 1982 to 1986, 82
percent of those hospitalized for asthma in New York City were African
Americans or Hispanics and those two groups accounted for 76 percent of
asthma deaths. The reason certain ethnic groups are harder hit by asthma
seems to be more economic than genetic. Lack of adequate medical attention
leads to a failure to diagnose asthma and to keep it under control. Also,
urban living conditions, which are usually crowded and less sanitary, lead
to a greater exposure to allergens.
In
fact, a study in the medical journal Lancet in 1992, confirmed that
avoiding exposure to allergens in the first year of life can help prevent
or delay childhood asthma. In this study, infants in one group were breast
fed or given allergen-free formula. Their diets were free of cows' milk,
eggs, fish, nuts, soy products, wheat and oranges (breastfeeding mothers
followed the same diet). The bedrooms and living areas of this group were
cleaned with anti-dust mite solution for the first year of life (dust
mites are microscopic bugs that cause allergies to dust). The infants in
the other group ate freely and lived in untreated environments. After one
year, the specially treated group had a 13 percent rate of allergies and
asthma while the untreated one had a 40 percent rate.
Preventing
Attacks
The
following tips can help your child avoid triggers and thus lessen the
frequency and severity of his attacks:
-
Make
sure your child's home is smoke-free.
-
Keep
your child's room as uncluttered and dust-free as possible by:
removing any carpets or rugs so the floor is easy to clean (washable
throw rugs can be used); making sure stuffed animals are washable or
are kept covered with plastic when not in use; using washable drapes
on the windows instead of venetian blinds; avoiding open book shelves,
upholstered furniture, fuzzy blankets or feather- or wool-stuffed
comforters and pillows; using a washable mattress cover; and washing
all the bedding once a week in hot water. Dust mite resistant
solutions, mattress covers and pillows are also available.
-
The
National Institutes of Health recommends steam or hot water heat
instead of hot air heat for asthmatics. If there is a hot air furnace
outlet in your child's room, install a filter made of several layers
of cheesecloth or some other adequate material (such as old nylon
hose) and change it frequently. Also, seal holes and cracks in the
floor around heating or other pipes with tape.
-
Clean
your child's room daily, and once a week do a thorough cleaning of
floors, furniture, tops of doors, window frames, etc., with a damp
cloth or oil mop. Air the room while cleaning, but then keep windows
closed.
-
Strong
odors often provoke symptoms. The National Allergy and Asthma
Network/Mothers of Asthmatics (800-727-8462), advises that parents use
the following away from children: aerosol cans, paints, insecticides,
detergents, chemicals, household cleaners, strong soaps, perfumes,
cosmetics, air fresheners, potpourri.
-
Test
children to see if they are allergic to animal dander (small scales
from animal hair or bird feathers). Cats, dogs, birds, etc., can cause
problems for asthmatics.
-
Help
your child avoid breathing cold air. In cold weather, have him cover
his nose and mouth with a scarf or cold weather mask (available in
drug stores).
-
Make
sure your child gets regular exercise to improve the strength of the
lungs and airways. If vigorous exercise triggers an attack, talk with
your pediatrician. Adjusting the medication or exercise may help.
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